- Rouargue, Émile
- Rougeron, Vignerot & Cie
- Rouget, François
- Roze, Jules
- Russ, L.
- Sabatier, Léon
- Saint-Raymond, Ed.
- Sands, James
- Sands, Robert
- Sargent, Alfred
- Scharf, Johann Georg
- Schmelz, Charles Simon Guillaume
- Schmidt, Oskar Friedrich
- Schnorr von Carolsfeld, Julius
- Scott, J(ohn?)
- Scott, William Bell
- Seaver, Robert
- Sébin
- Senior
- Shury, John
- Slader, Samuel Machin
- Smeeton, Burn
- Smith
- Smith, John Orrin
- Smith, John Thomas
- Sotain, Noël-Eugène
- Specht, Carl Gottlob
- Stadler, Joseph Constantine
- Steinbrecher, Gustav Richard
- Stocks, Lumb
- Stroobant, Louis-Constantin
- Stypulkowski, Lucjan
- Sutherland, Thomas
- Swain, John
- Swain, Joseph
- Swan's Electric Engraving Co.